Cloning Arrays

Benchmark created by Mario Klingemann on

Preparation HTML

<script>
  var a = [];
  for (var i = 0; i < 2000; i++) {
   a[i] = i;
  }
</script>

Test runner

Ready to run.

Testing in
TestOps/sec
Slice
var b = a.slice();
ready
Concat
var b = a.concat();
ready
Concat 2
var b = [].concat(a);
ready

Revisions

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